| Progress | Difficulty | Peak |
|---|---|---|
| Vol 1 | 2.12/5 | 4.09/5 |
| Vol 2 | 1.81/5 | 3.00/5 |
| Vol 3 | 1.98/5 | 4.17/5 |
| Vol 4 | 2.24/5 | 4.14/5 |
| Vol 5 | 2.22/5 | 4.23/5 |
| Vol 6 | 2.25/5 | 4.27/5 |
| Vol 7 | 2.08/5 | 4.09/5 |
| Vol 8 | 1.90/5 | 4.00/5 |
| Vol 9 | 2.15/5 | 4.19/5 |
| Vol 10 | 2.29/5 | 4.03/5 |
| Vol 11 | 2.05/5 | 4.03/5 |
| Vol 12 | 2.41/5 | 4.35/5 |
| Vol 13 | 2.43/5 | 4.17/5 |
| Vol 14 | 2.38/5 | 4.32/5 |
| Vol 15 | 2.56/5 | 4.32/5 |
| Vol 16 | 2.64/5 | 4.38/5 |
| Vol 17 | 2.46/5 | 4.35/5 |
| Overall | 2.23/5 | 4.38/5 |